3-4 Ω RESISTANCE MEASUREMENT
Zero adjustment on the ohmmeter is carried out using the calibration button (front) by
short-circuiting the inputs.
Ω
Ω x 1 (1) Ω x 10 Ω x 100
Scale (indication) 20k…0 (c)
Reading coefficient x 1 x 10 x 100
Measuring range
10Ω to 20kΩ 100Ω to 200kΩ 1kΩ to 2MΩ
Internal resistance
200Ω 2kΩ 20kΩ
End of scale current 8mA 800µA 80µA
Open circuit voltage 1.5V
Accuracy ±10% (2) (4)
Admissible overload 400V (3)
(1) Buzzer for R≤ 100, no buzzer for R ≥ 250Ω
(2) of the mid-scale value
(3) for 5 seconds (protection by resistors and CTP)
(4) for battery voltage of 1.45V ± 0.1V
3-4-1 AUDIBLE CONTINUITY TEST - SEMI-CONDUCTOR TEST
NB : In Ω x 1: "buzzer" threshold ≤ 250Ω, control of diode on or blocked ( , anode
in "COM" for on). Do not carry out live measurements.
On the ohmmeter, calibre Ω x 1, if voltage of V
AC
> 5V (rms) is applied, the "buzzer"
issues a modulated sound until the error has been corrected.
4 - GENERAL CHARACTERISTICS
4-1 Dimensions and weight
■ 97 x 155 x 43 mm
■ 420 g
4-2 Power supply
■ 1.5V battery (R6 saline or LR6 alkaline)
■ Battery life:
about 250 hours for the ohmmeter with an alkaline battery
4000 5-second measurements for R < 50Ω (with beep)
4-3 Maximum climatic conditions
■ Temperature use -10°C to +50°C ; storage -30°C to +70°C
■ Relative humidity use ≤ 80% HR
■ Altitude use < 2000m
15
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